In this article we will discuss about the functions of the Krebs cycle, explained with the help of diagrams. Krebs made an outstanding contribution to the discovery of the operating mechanisms of this cycle which is also called tricarboxylic cycle or citric cycle, owing to the participation of various tricarboxylic acids, including citric acid. Before studying this cycle — which [...]
In this article we will discuss about the photosynthetic cycle of reduction of Co2 into carbohydrates. The transformation of light energy into chemical energy results in the production of ATP and NADPH (see fig. 3-12). Our present knowledge of the metabolism of carbohydrates will enable us to study what is sometimes called the dark phase of photosynthesis, i.e. the series [...]
It was observed that pyruvic acid and lactic acid formed in the muscle during glycolysis can be reconverted into glucose (or glycogen) when energy is available (in aerobiosis) and one could wonder whether this neoglucogenesis (or gluconeogenesis, or neoglycogenesis) follows — in the reverse direction — the glycolytic path. In fact, among the reactions leading from glucose to pyruvic acid [...]